Photo by: Alex Brandon
The Washington Capitals and fans celebrate the game-winning goal by center Mike Ribeiro in overtime of Game 5 first-round NHL Stanley Cup playoff hockey series against the New York Rangers, Friday, May 10, 2013, in Washington. The Capitals won 2-1, in overtime. (AP Photo/Alex Brandon)

Robert Mueller’s special counsel investigation into Russian meddling in the 2016 election has cost $6.7 million during the first four and a half months of the probe. Click to see past independent counsel investigations guilty of racking up high bills.